Back
CVE-2018-18445
In the Linux kernel 4.14.x, 4.15.x, 4.16.x, 4.17.x, and 4.18.x before 4.18.13, faulty computation of numeric bounds in the BPF verifier…
High7.8EPSS 0.54%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
In the Linux kernel 4.14.x, 4.15.x, 4.16.x, 4.17.x, and 4.18.x before 4.18.13, faulty computation of numeric bounds in the BPF verifier permits out-of-bounds memory accesses because adjust_scalar_min_max_vals in kernel/bpf/verifier.c mishandles 32-bit right shifts.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.54% · top 55% of all CVEs (2 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
n/a
- affected n/a
References (13)
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.13 (opens in a new tab)x_refsource_MISCx_transferred
- USN-3847-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-3835-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- RHSA-2019:0512 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- USN-3847-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.75 (opens in a new tab)x_refsource_MISCx_transferred
- USN-3832-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://github.com/torvalds/linux/commit/b799207e1e1816b09e7a5920fbb2d5fcf6edd681 (opens in a new tab)x_refsource_MISCx_transferred
- USN-3847-3 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- RHSA-2019:0514 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1686 (opens in a new tab)x_refsource_MISCx_transferred
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b799207e1e1816b09e7a5920fbb2d5fcf6edd681 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.f5.com/csp/article/K38456756 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .